Sanyo 28H1 Service Manual page 53

T0
FRONT UNIT
K19D
ASSY, PWB, POWER/DEF F3TV
DY
K4DY
K4S
TO
SCREEN
CRT UNIT
K7S &K7C
K4C
HEATER
CRT(28)
BXXAVB029VIH-
(A66EGW83X122)
11 11
6 6
8 8
12 2 2 7 5 7 5 9 9 10 10
K7G
1
X
K7GP1 J30B0250N
R756
2
1/2DJ
470K
R752
C751
W902 K7E
2000
KP1000
JG0152
J30B0250N
AHE
C753
EARTH CONNECTOR
KK1000
K7Z
1
J10EA020N
2
L751
K7GA
X
X
K7S
J30B0250N
SCREEN
3
GND
2
HEATER
TO R759 X
PER DEF UNIT
1
200V
K4S & K4C
R757
C736
1/2DJ R740
X
330K
2FJ33
K7C
K7CP1 J30B0250N
K7CP2 J30B0250N
K7CP3 J30B0250N
COLOUR TELEVISION
E E H H 1 1 - - A A
E E H H 1 1 - - A A
CHASSIS
SERIES
Model
28H1 (C28ER59)
Number:
SERVICE
C28ER59-00
REF.NO.
Part No. 1AA6P2P0675-- F3TT (SHEET 1/7)
D685
D684 1SS133
;1SS176
1SS133
:1SS176
R685
C684
22K
EM3.3
R684
R686
8.2K
2.2K
D681
EM01Z
5V
C681
C683
35EM
10EM100
470
D682
R681
RD5.6EB3
3.3K
:UZ-5.6BCC
:MTZ5.6C
TO
POWER/DEF
1
UNIT
K19D-1
J30B0250N T681
K6D
PT0146
AC
K19D-2 ;L5PT0250-
J30B0250N
C602
2
250GM
K19D-3 0.1XBC
J30B0250N ;250HM
L602
0.1XD
K19D F35B0570N
KF L607
Z20103 L601
---
KF-1 J30B0250N
F35B0570N
C601
250GM
0.1XBC
;250HM
0.1XD
W901 F601
4A250VTCSL KE
W10B00100 KF-2
:4A250VTYL
J30B0250N
SW601 L608
(ASSY CORD.
Z20103
S10B0480N
J30B0250N
---
POWER)
L901
L81B03400
(COIL.DEGAUSSING)
(SHEET 2)
1 V-BLK 1
K23M
FBT-pulse
X
H-BLK ASSY, PWB,
HD/NTSC SUB_DEF
K4M
GND F3TV
V-SYNC (SHEET 3)
X
H-SYNC
GND
H-drive
K23DF
1
NORM
X
PANPRAMA
12 12 12V
PCC
1 SDA 1
K23N
NOR
SCL
X
ZOOM
4
K4N
5V
X
12V
H/OSC-B
-12V
PCC
V-drive
11 11
IC711H1/H3/H4
IC711
2400010
TDA6111Q/N4N
9 8 7 6
C719
500
KK
560A
D712
R753 D711
1/2DJ TVR1G: TVR1G
R717
3.9K ERB43-04 :ERB
1/2DJ 43-04
560
L711
L2C14R7KN
R763
TP47G TP47B
C712
1/2DJ IC721H1/H3/H4
R727 250GK
3.9K
2400010
B 0.22P
1/2DJ
560
G
L721
R
L2C14R7KN
J11B2400N IC721
R773 R737
K701 1/2DJ 1/2DJ
TDA6111Q/N4N
3.9K 560
TP47R
9 8 7 6
L731
C729
L2C14R7KN 500
KK
560A
D721
TVR1G
:ERB
43-04
D722
TVR1G:
ERB43-04
X
C722
IC731H1/H3/H4
250GK
2400010
0.22P
IC731
TDA6111Q/N4N
9 8 7 6
C739
500
KK
560A
D732
D731
TVR1G
TVR1G
:ERB43-04
:ERB
43-04
R751
J1
C754 C737 C732
250GK
X 250EM
0.22P
2.2CY
The service Precaution:
PRECAUZIONE DI SERVIZIO
The area enclosed by this line L'area inclusa in questa linea (
( ) is directly connected with
è collegata direttamente con la tensione
AC mains voltage. When servicing the
della rete CA quando si serve l'area col-
area, connect an isolating transformer
legare un trasformatore isolante tra il
between TV receiver and AC line to
ricevitore TV e la linea CA per eliminare
eliminate hazard of electric shock.
il pericolo di scossa elettrica.
Product safety notice:
NOTIZIE SULLA SICUREZZA DI FUN-
Product safety should be considered
ZIONAMENTO
when a component replacement is
Ogni sotituzione di componenti va fatta
made in any area of a receiver.
tenendo conto della sicurezza di funzion-
Components indicated by a mark /!\ in
amento. I componenti indicati sollo
this circuit diagram show components
schema con il simbolo /!\ hanno partico-
whose values have special signifi-
lare importanza per il sicuro funziona-
cance to product safety. It is particu-
mento del TV.
larly recommended that only parts
I suddetti componenti devono essere
specified on the part service manual
sostituti esclusivamente con quelli indi-
be used for components replacement
cati nell'elenco.
pointed out by the mark.
2SC536E-NP 1AA0B10E35300
Q682
:2SC536F-NP
:2SC536G-NP
ASSY,PWB,FRONT F3TV
:QT0378A
:QT0378B
PWB=1AA4B10E13100
D686
1SS133 R1909
:1SS176
10K
RC-PRE AMP R1908
1.8K
Q681 A1901
U20B07200
:U2R0003--
2SC2688'1'K
:2SC2688'1'L
:2SC2688'1'M
1 2 3 4
:2SC2621DRA
:2SC2621ERA
TORI
J1913
J1
R1912
D1911
220
LN28RPL
5V
R1904
4.7K
R1911
R1903
C680 270
8.2K
D1912
R1902
400KK MTZJ11C
470XH :UZ-11BSC 15K
:400KK
470XP R1901
56K
J643
J1
PS601
EV0038
5V
C600
K19F
500KK
4700A
J10BP100N
KE-1 KE-2 1 10
J30B0250N
TO
MAIN_UNIT
K2F
10
1
KEY_GND 12
12 K2F
RC_5V_GND
J11EH100N
RC_5V
POWER
1
24V
GND
24V
V_MUTE
K4A
K4A GND RC5V
J11EH1120N
GND
TV9V
J10EH1120N
8V
TV5V
K20P0
8V
TV12V
X
GND
GND
GND ASSY, PWB,
GND
1 8
VIDEO
1
1
F3TV
GND
6
6 15V
(SHEET 4)
IIC SDA
15V
IIC SCL
GND
K5C K2C GND
GND
Y2_IN
J10EH060N J11EH060N
K20VI
33V
GND
GND X
B-Y2_IN
1
1
GND
7
GND
7 R-Y2_IN
B12V
GND
10
B5V
1
GND
K4B K2B
SCL
AKB
J10EH070N SDA J11EH070N
V BLK
GND
H BLK
ODD/EVEN K20PL
H SYNC
1 1
X
1
ABL
VM MUTE
10
10 GND
GND
GND
ABL K17M
GND
8
VM
GND
J10EA040N
NC 12V 1
HD2
IK
4
VD2
B
K4E K2E
GND
K20D
G
J10EH10 0N H BLK J11EH100N
J10EH1120N R
V BLK
GND
POWER_ERROR
GND
GND
R/C_5V
8
1
1
R708
1/6DG C703
1.2K 16EM
470
R709 C704
B R705
1/6DG 6.3EM
220
470 470
D709 D704
5 4 3 2 1
J1 RD5.1EB1:
UZ-5.1BCA
D713
D710
RD5.1EB1:
J1
UZ-5.1BCA
C711
D714 C718
R711
X
UZ-15BC KZ
R716 DJ1K
(A:B) 0.022
2SJ47K
F
R718
56
R713 R712 R710
470 J1 470
R714
X
R719 R715
Q711
DJ1K DJ1K
2SA608ECNP TP48B
:2SA608FCNP
R724
:2SA608GCNP
J1 :QT0379A
:QT0379B
R703 D703
J1
1SS133
:1SS176
G
5 4 3 2 1
D705
RD5.1EB1:
R721
UZ-5.1BCA
DJ1K
D724 C728
UZ-15BC KZ0.022F R723 R722 R720
R726
(A:B)
2SJ47K 470 J1 470
R728
56
R725 R748
DJ1K X
C721
X
Q721
R729 R734
DJ1K 2SA608ECNP
J1
:2SA608FCNP
:2SA608GCNP
:QT0379A
:QT0379B R702 D702
J1
1SS133
:1SS176
R
D733
5 4 3 2 1
RD5.1EB1:
UZ-5.1BCA
C738
KZ0.022F
C731
D734 R731
X
DJ1K
UZ-15BC
R732 R730
(A:B)
J1 470
R738
56
R735
R736 R733
DJ1K
2SJ47K 470
Q731
D701
2SA608ECNP
:2SA608FCNP R701 1SS133
:2SA608GCNP J1 :1SS176
:QT0379A
:QT0379B
R739 D750
R750
DJ1K UZ-9.1
68K
BC(B:C) TPIK
Note sul diagramma di circuito :
1. Tutte i valori di resistenza sono in ohm,
)
K=1,000, M=1,000,000.
2. Tutte le resistenze nominali watt sono di
1/6 a meno che sia specificato altrimenti.
3. Eccetto per i condensatori elettrolitici, tutti i
valori di capacitanza di meno di sono
espressi in µF, e di piu di 1 sono in pF. I
varoli di capacitanza elettrolitici sono in µF.
4. Tutti volt di capacitanza nominali sono di
50V a meno cha sia indicato altrimenti.
5. Tutti valori di inductanza sono in µH.
6. I valori letti del voltaggio presi con un
"VTVM" proven gono dal punto indicato
sulla massa del chassis, i valori di voltag-
gio presi usando un segnale di barre col-
ore sono con tutti i controlli alle loro
posizioni normali ed il commutatore AFC
in posizione "OFF". Il voltaggio puo variare
con l'intensita del segnale.
V IN R IN
L IN
K1101 KR-2
2 1
J30B0250N
KR-1
J12B1522N
J30B0250N
KR
5V
R1101 C1102
C1105
KK100 KK100
75
L1101
L1102
C1101 L2B9 L2B9
100KN 100KN
16EM
R1104
10
R1103
2.2K
K001
2.2K
C1107
J12B04900
16EM10
;J12B05400
C1106
C1104 KK1000 12V
R1141
I
C1103 16EM10
10K
L001
KK1000 R1112
L2G3
100K
C1114 120KN
SW1904
VOL-
EM10
R1102
100
Q1111 C1111
SW1903
VOL+
D1111 KZ0.01F
R1114
MTZJ11C R1113 C001
1.2K
D1141 ;UZ-11 150K
SW1902
POS- BSC
MTZJ11C 16PM10D
R1122
;UZ-11BSC
100K
C1124
SW1901
EM10
POS+ R1123
150K
Q1121
D1121 R1124
MTZJ11C 1.2K
;UZ-11
BSC
Q1131
R1132
Q1121,Q1111,Q1131
10K C1134
2SC536E-NP 2SC536E-NP 2SC536E-NP
EM10
R1133
:2SC536F-NP :2SC536F-NP :2SC536F-NP
:2SC536G-NP :2SC536G-NP :2SC536G-NP
10K
R1134 :QT0378A :QT0378A :QT0378A
:QT0378B :QT0378B :QT0378B
1.2K
D1131
MTZJ11C
;UZ-11
BSC
K19G
7
J10BP070N 1
TO
MAIN_UNIT
K2G
1 7
K2G
J11EH070N
1
1
1
GND
TV9V
TV9V
K73A
K2PO K2PO SC5V
X
SC5V
J11EG080N J11EG060N
50/60HZ
STILL_ON/OFF
GND
8
8
8
ASSY, PWB,
1
SCAN CONV
1
1
F3TV
GND
(SHEET 4)
H-SYNC2
K2VI
GND
J11EG100N
V-SYNC2
GND
K2VI
K73C
Y-OUT2
J11EG100N
X
GND
B-Y_OUT2
10
GND
1
R-Y_OUT2
10
10
1
K2PL
1
Y-IN
J11EG080N
GND
B-Y_IN
GND
8 R-Y_IN
K2PL
K73B
GND
J11EG100N
X
H-SYNC
GND
V-SYNC
GND
10
10
K7AP K7GB K7GC K7GD K7GE
J30B0250N X X X X
R791
R707
1/6DG
J1
3.3K
Q701
2SC536E-NP
C702
:2SC536F-NP R706
16EM
:2SC536G-NP J1
47
:QT0378A
:QT0378B
R793
R704 1/6DG
2.2K
X
C701 R792 C705
C706
X
DJ680 X
EM1 K7D
J10EA080N
R755
J1
8
12V
IK
B
G
R
GND
GND
5VCPU
1
R745
R742
X X
K7T
X
Q702
R743
X
X 1
R744
Q703 SPOT KILLER
X
X
R746
X
3
1AA0B10E35900
ASSY,PWB CRT F3TV
PWB=1AA4B10E13700
7. Le forme di onda furono prese con il seg-
nale di barre colore e i controlli regolati
oppure le forme di onda di immagine nor-
male furono prese usando un oscillatore a
larga banda ed una sonda bassa capasità.
8. Rispetto a quando indicato su questo
schema possono essere state introdotte
delle modifiche.
9. I diodo 1S1555 possono essere sostitutti
con 1S2473, 1S2076 oppure DS472 a
meno che sia specificato altrimenti.
I transistori possono essere sostitutti con
2SC536(Q,R,S), 2SC1740(Q,R,S),
2SC945A(Q,R,P) oppure
2SC1815(G,O,Y) a meno che sia speci-
ficato altrimenti.
Il transistore 2SA608(E,F) puo essere
sostituito con 2SA933(Q,R),
2SA564(QA,RA), oppure 2SA1015(O,Y)
a meno che sia specificato altrimenti.
SP901
A10B00400
2 1
KL
SP902
A10B00400
L003
Z21B
0040N
C004
KZ0.01F
C003
KZ0.01F
C006
KZ0.01F
C005
KZ0.01F
C002
16PM
10D
K19H
1
J10BP050N 5
TO
MAIN_UNIT
K2H
1
5
K2H
J10EH050N
ASSY, PWB, MAIN F3TT
(SHEET 1&2)
K2Y K2W
1 J10KA120N 12 J10KA120N
1 12
12
1 K10Y 12 K10W
1
J11KA120N J11KA120N
ASSY, PWB,
BACK F3TV
K10Z
J10EH1120N (SHEET 3)
2
1
TO
VIDEO UNIT
K20D.
Circuit diagram notes :
1. All resistance values are in ohms,
K=1,000, M=1,000,000.
2. All resistance rated wattages are 1/6W
unless otherwise noted.
3. Excepting electrolytic capacitors, all
capacitance values of less than 1 are
expressed in µF and more than 1 are pF.
4. All capacitance rated voltages are 50V
unless otherwise noted.
5. All inductance values are in µH.
6. Voltage readings taken a digital voltmeter
are from point indicated chassis ground.
Voltage readings taken by using a colour
bar signal are with all controls at normal
position. Some voltages may vary with
signal strength.
7. Waveforms were taken with colour bar
and controls adjusted for normal picture.
Waveforms were taken by using a wide
band oscilloscope and a low capacity
probe.